said it was a $4 no name psu from a flea market it was probably already broke someone threw it in a box and put the box on a stand in the market.
So when you say you tried it on the motherboard
do you actually mean you had assembled a complete system with cpu, memory, gpu & drive? Or were you just trying to switch on the power supply or something?
My understanding of connectors is, if it's an 8 pin use an 8 pin and if it's a 4 pin use a 4 pin no ifs or buts or questions. Msi produced some boards that had a 4 pin and an 8 pin where the 4 pin was for extra support so 12 pins in all, for overclocking or later gen cpus (that never would exist). Bit overbuilt sometimes for who knows what might happen.
If you had some metal artifact like a loose screw in the case shorting components of the mobo or a standoff in the wrong place shorting the mobo, the psu would go more than 'Pop' it would go 'bang' and shut off and never switch on again. If the board itself has a physical defect causing a short circuit, it would probably go bang also.
Hard to get in there well sometimes improperly inserted connectors could cause a problem sure it was the right connector keyed to the slot? This unknown power supply might've had a similar looking 8 pin which isn't keyed to the socket or if it is in fact the correct connector it just killed itself for being naff.
What cpu do you have installed? Lga 775 cpus vary wildly in tdp and power needs. Some draw more power than others.
If it was that It was probably due to the power supply's lack of overcurrent or short circuit protections, being old, of insufficient wattage capacity or just plain poor quality.
Are you driving at, so does my system still work after a PSU died, well maybe, maybe not. I have an fx sabertooth from about the same era and I blew up two power supplies on it that were poor quality and the board and all it's components survived and it's still going years later. Is my experience a warranty of your board? No. Maybe it's still ok maybe it's not.
Was the Mobo ever ok either? Well nobody canny would ever use anything but a good quality power supply backed by a solid warranty ever for anything.
Also looked at the q9650 on
cpu-z heavily overclocked on a Asus pq-5 pro mobo it could beat an fx 8350 so if you had a pci-e 3.0 gpu like a 1060 or 1660 super that you didn't mind running at pci-e 2.0 you could run the Witcher 3 at 1080p high settings 60fps direct x 11 maybe could switch on ray tracing with direct x 12 with a 1660 super but it's not a high end ray tracing card either.
Whereas
Technical city tells a different story it is under the minimum requirements for 1080p on witcher 3 at default settings.
Don't know if your MSI is an overclocking board either. Not many hits on a search result, only 1, that manual.
So at default, my fx can run witcher 3 hunt on directx 11 60fps 1080p med/hi settings and no ray tracing while directx 12 drags the fps to about 47 and I have to use dsr factors because my monitor is 20inch 900p.
Witcherses two! Walk no further! This mountain trolly mountain. because are off trollys.
You need a quality power supply and quality cooler to overclock anyway and then well it's not clear that you could put a modern gpu in pci-e slot without frying it even if it should be backwards compatible the boards from that era did not like power hungry gpus either so something with a very conservative power draw like an rx 6600 might work in it.
Fair point? You know it's cheap /old/ obsolete so you simply can't expect it to perform like a whatever is expensive hi end thing these days.
It does not look like anything has blown but something must have.I got a MsI 7513 motherboard from the same market i don,t know weather that is working, or if it caused the problem with the PSU.The red light on it was working but nothing else the fab never span.As it was a no name brand any way only cost £4.Thanks your informative answer.
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